Improvement in needle and abm for sewing-machine



" .asma gaat pane erp-w.

MARY P. CARPENTER, OF SAN FRANCISQQLAQALIFORNIA..

l I Letters Patent No. 99,158, dated January 25, 1870.x

IMPROVEMENT IN NEEDLE .AND .ARM FOR SEWING-MACHINE.

The Schedule referred to in these Letters Patent and making part of thesame.

s To all whom it may concern but it will also be seen, that the sameobject would Be it known that I, MARY P. CARPENTER, of the be attainedwithout the lugs, by attening the upper city and county of SanFrancisco, State of California, ends of the needle, as described. haveinvented certain new and useful Improvements The operation of threadingwill be readily underin Needle-Arms and Needles to Sewing-Machines;stood, by. supposing the line g h (fig. 2) to represent and I do herebydeclare that the following is a full, the position of a thread after oneend has been passed clear, and exact description of the same, referencethrough the opening c, and the line g.r h', passing being had to theaccompanying. drawings, and to the through the eye, the position of thesame thread after letters marked thereon. the operation of threading`hasbeen performed, for it My invention relates to certaingpprovementsin is plain, that if we grasp the thread with one handvat that class ofdevices that has for its object thel facilig, and with the other hand ath, we can carry it ditating of the operation known as threading' theneedle rectly downward into th'e slot d and passage a, and

of sewing-machines, and consists of certain details of down between theyielding faces of the passage a to construction of lthe needle, and thearm or har to the line g h', and that when the thread has reached' whichthe needles are attached, as hereinafter dethe eye,'the passage a wouldagain close, and prevent Y scribed. `it from escaping.

To enableA others skilled in the art or science to I am aware thatneedles have been invented, having which it most nearly appertains, tomake and use my a slit or passage from some point above to some pointinvention, I will proceed to describe fully its construcbelow the eye,through which the thread isadmitted; tion and operation. but when bothparts of the needle, forming this slit or In the drawingspassage, arenot firmly secured at both ends, it is-evi- Figure 1 represents a sideelevation of a needle, and dent that needles so constructed must be madevery A5' a portion ofan arm having my improvement. large in proportionto their strength, and therefore are Figure 2, a rear elevation of same.not fit for fine sewing; and, also, if the slit or passage Figure 3, aview of under side of same, showing the does not extend up so high thatthe loose end is never` Dee-die U SeC-OU- thrust through the cloth,'there' is a liability to catch Figure 4 is a side elevation of such aneedle, much in passing.

enlarged. 'Io obviate this diiiculty, a needle has been in- Figure 5 isa front elevation of same. vented, having two eyes, a large and a smallone, con- Like letters refer to like parts. nected by a slit or passage;but this two-,eyed needle l It will be seen, by reference to thefigures, that my has an element of' weakness, in its great length andV lneedle differs from most others, in having a longtupeculiarconstruction, equal, perhaps, to some of the i diual slit or passage, a,extending from below the eye others referred to, while, by my invention,all the adl up through the body, and out at the top, and in havvantagesattained byanypf the others are secured, ing the upper ends k, thusformed, attened, and procombined with greater simplicity ofconstruction, and l vided with lugs or projections l). a needle isproduced that can be used fol-the finest l It will also be seen, byreference to figs. 1, 2, and 3, kind of work, on account of its greatstrength in prothat the arm differs essentially ii'om most othersewportion to its diameter. ing-machine arms, in being divided at itsextremity, The two-eyed needle being necessarily longer than by meansofthe longitudinal slot c, and the transverse the ordinary needle, must'have an arm, constructed k slot l and opening e, into fourpnrts,forming, by means to correspond to that length, while an arm having my nof the screwf, a clamp, I. improvements may be used with any kind of aneedle.

To1 place the needle in position, with the passage a Having thusdescribed my invention,

slightly open at the Itop, but closed near the eye, as \Vhat I claim,and desire to secure by Letters Patl shown in igs. 1, 2, and 3, I lirstplace a small slip of ent, is

paper, vor other substance about equal inthickness to The combination,with the needle-arm, provided the thread to be used, between the facesof the paswith the clamp l, the opening c, and slot al, of the sage a,at the upper end, and grasping the needle beneedle, having thepassage a,the flattened ends k, and tween the thumb and lingers ofthe left hand,in such the lugs 'or- Aproject-ions b, the whole constructed and amanner as to close the passage, insert the needle, so arraugedto operatesubstantially as and for the purthat while the lugs l) enter the slot c,the paper will pose specified.' enter the transverse slot d; then, byturning the screw In testimony whereof, I have hereunto set my hand 'Yf, the needle will be held fast, and the paper can be and seal. lf"withdrawn. MARY P. CARPENTER. [In s.]

From this description, it will be observed that the Witnesses: lobjectof the lugs b is to obtain abundant b ear'i'n'g- DAVID R. SMITH, Surfacefor the faces of the clamp to press against, \V.'M. SMIT'H.

